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Electrothermic purifying filter element for treating high-air-quantity VOCs (volatile organic chemicals) waste gas

An exhaust gas treatment and electrothermal technology, applied in chemical instruments and methods, dispersed particle separation, separation methods, etc., can solve the problems of not meeting the requirements of large air volume VOCs exhaust gas purification, existing safety, large wind resistance, etc., to achieve small equipment, The effect of compact packing and reducing wind resistance

Active Publication Date: 2012-07-25
李鑫焱
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that ordinary felt-like activated carbon fibers and cloth-like activated carbon fibers have large air resistance when densely packed, which cannot meet the requirements of large air volume VOCs exhaust gas purification, and loosely packed will have potential safety hazards when energized and heated

Method used

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  • Electrothermic purifying filter element for treating high-air-quantity VOCs (volatile organic chemicals) waste gas
  • Electrothermic purifying filter element for treating high-air-quantity VOCs (volatile organic chemicals) waste gas
  • Electrothermic purifying filter element for treating high-air-quantity VOCs (volatile organic chemicals) waste gas

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Embodiment 1

[0026] The electrothermal purification filter element used for the treatment of large air volume VOCs exhaust gas in this embodiment is as follows: figure 1 As shown, the appearance of the electrothermal purification filter element is a hexahedron structure parallel to the air inlet surface and the air outlet surface, including the enclosure structure and the adsorption bed 1 filled inside. The enclosure structure is fixed by the air inlet surface, the air outlet surface and other , sealing, and protective protection plate 5, the air inlet surface and the air outlet surface are a layer of grille 2, a layer of porous sieve plate 3 and a layer of insulating screen 4 from the outside to the inside, the guard plate 5, the grille 2 , the porous sieve plate 3 are all made of epoxy resin material, the insulating screen 4 is a glass fiber screen, and the adsorption bed 1 is Figure 3-Figure 7 The activated carbon mesh cloth and activated carbon fiber cloth (felt) shown are formed by p...

Embodiment 2

[0040] The electrothermal purification filter element used for the treatment of large air volume VOCs exhaust gas in this embodiment is as follows: figure 2 As shown, the appearance of the electrothermal purification filter element is a cylinder, including the enclosure structure and the adsorption bed 1 filled inside. The enclosure structure is composed of an inner cylinder 9, an end cover 10 and an outer cylinder. The inner cylinder 9 and the outer cylinder The cylinder body is the air inlet surface and the air outlet surface respectively. The inner cylinder body 9 is a hollow porous cylinder with one end closed and made of epoxy resin material, on which it is tightly wound in a manner corresponding to the hole layout, such as Figure 3-Figure 7 The shown activated carbon mesh cloth and activated carbon fiber cloth (felt) form an adsorption bed 1, and the outer cylinder is surrounded by multi-layer insulating screens 4 and fastened by clamps 11 to ensure that the adsorption ...

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Abstract

An electrothermic purifying filter element for treating high-air-quantity VOCs (volatile organic chemicals) waste gas comprises a containment structure and an adsorption bed layer filled in the containment structure, and is characterized in that activated carbon eyelet fabrics or / and porous activated carbon fiber cloth (felt) are overlapped to form the adsorption bed layer, an electrode A and an electrode B are arranged on two optional opposite end surfaces or positions close to the end surfaces of the adsorption bed layer, current can be led into the adsorption bed layer via the two electrodes, a couple is arranged in the adsorption bed layer, the temperature of the adsorption bed layer is tested in an electrothermic temperature rising process, the containment structure comprises a sealing portion, an air inlet surface and an air outlet surface, and each of the air inlet surface and the air outlet surface is made of one layer or multiple layers of mesh or porous materials. The air resistance of the electrothermic purifying filter element for treating the high-air-quantity VOCs waste gas is reduced, the high-air-quantity organic waste gas is treated by small equipment, filling quantities of adsorption materials in units of the adsorption bed layer are increased, adsorption period is long, energy consumption caused by frequent desorption and adsorption switching of the equipment due to low filling quantities of the adsorption materials is avoided, the adsorption materials are filled compactly, resistivity of the adsorption bed layer is uniform and identical, and potential safety hazards caused by local over heat are avoided.

Description

technical field [0001] The invention relates to the treatment of volatile organic compound (VOCs) waste gas in the field of environmental engineering, in particular to a filter element that uses activated carbon fiber materials to absorb and purify VOCs waste gas and desorbs it by electrothermal method, which can be used for recovery from VOCs waste gas produced in various industries Organic solvents can also be used to purify VOCs in the air. Background technique [0002] VOCs waste gas is generally produced in modern industrial production and manufacturing processes, such as flexible packaging printing, synthetic leather, synthetic fiber and synthetic resin, automobile and motorcycle coating and other industries. VOCs waste gas is directly discharged, which not only pollutes the air, but also is a serious waste. Increased production costs, increasing the economic burden on enterprises. The organic waste gas produced by the above-mentioned industrial processes has a large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04
Inventor 张蕾朱军利王鹏宇
Owner 李鑫焱
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